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Famous Question

 Famous Question
Question with 10,000 views. This badge can be awarded multiple times.

earned this badge 18 times.
Why do we divide by $n-1$ when calculating sample correlation?
Awarded Feb 15 at 16:46
Is every correlation matrix positive definite?
Awarded Jan 21 at 19:26
Why set weights to 1 in confirmatory factor analysis?
Awarded Nov 18 '20 at 8:32
What's the relationship between initial eigenvalues and sums of squared loadings in factor analysis?
Awarded May 21 '20 at 23:56
In ANOVA, if the null hypothesis is true is the expected value of F guaranteed to be 1?
Awarded Oct 12 '19 at 10:35
What does it mean to correlate residuals in SEM?
Awarded Aug 19 '19 at 14:15
What is error variance?
Awarded Jun 5 '18 at 11:11
Why do we say the outcome variable “is regressed on” the predictor(s)?
Awarded Feb 12 '18 at 1:27
What's the difference between regression coefficients and partial regression coefficients?
Awarded Dec 5 '17 at 20:47
How does the interpretation of main effects in a Two-Way ANOVA change depending on whether the interaction effect is significant?
Awarded Nov 13 '17 at 1:14
When doing a t-test for the significance of a regression coefficient, why is the number of degrees of freedom $n-p-1$?
Awarded Jun 9 '17 at 15:13
How can I improve the predictive power of this logistic regression model?
Awarded Mar 30 '17 at 5:22
Why does the t-distribution become more normal as sample size increases?
Awarded Nov 14 '16 at 5:28
How can a distribution have infinite mean and variance?
Awarded Nov 1 '16 at 19:38
Is it possible to get a negative F-statistic (e.g. in ANOVA)?
Awarded Apr 13 '16 at 1:20
Why use a certain measure of forecast error (e.g. MAD) as opposed to another (e.g. MSE)?
Awarded Feb 16 '16 at 17:36
Can a statistical test return a p-value of zero?
Awarded Apr 9 '15 at 18:53
What is the difference between descriptive and inferential statistics?
Awarded Dec 1 '14 at 20:03

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